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Windows 7: Windows sign-in: LogonUI.exe - Application Error

I am using HP dm4 laptop pre-installed with Windows 7 Home Edition.
I have upgraded to Windows 10 Home edition as part of the upgrade during Windows 10 release around august. After the windows 10 upgrade my HDMI was not working.
I used to connect my laptop to Sony TV which was not working after the upgrade.

Apart from that no issues.

Suddenly today when i switched on my laptop, getting the below error:

Windows sign-in: LogonUI.exe - Application Error

The instruction at 0x0000000000000000 refeenced memory at 0x0000000000000000. The memory could not be written.

I tried to login with safe mode, but couldn't login. Then i have downloaded the USB windows 10 bootable disc and followed the below instruction to enter safe mode which is not success.

Using the windows 10 bootable disc, there is option to install the windows 10, but it is asking for product key which i entered the valid windows 7 product key (pre-installed windows) sticked back of my laptop was not verified.

Windows sign-in: LogonUI.exe - Application Error

LogonUI.exe - Ordinal Not Found [error]hey everyone from this forum,
i've been getting this error message today,
after the boot screen (Starting Windows), and going to the logon screen this error messages shows.
http://my.mixtape.moe/moltxs.jpg
i've done:
replacing logonui.exe and comctl32.dll from an another computer that...

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General Discussion

Logonui.exe system error shell32.dll mising HELP!I downloaded a icon pack installer yesterday and it told me that i needed a restart for the results to take place... when i restarted my computer it came to the log on screen where i would usually enter my password but the screen was black all that was visible was the cusor, a turn off button at...

BSOD Help and Support

Error: LogonUI.exe No Disk in Drive...Yesterday I upgraded from Windows XP 32-bit to Windows 7 64-bit performing a clean install. When I hit CTRL + ALT + DEL to bring up the Task Manager, I get the following error:
LogonUI.exe - No Disk
There is no disk in the drive. Please insert a disk into drive
\Device\Harddisk5\DR5
I also...